Fork of ROS Serial Library
Dependencies: BufferedSerial
ros/service_client.h
- Committer:
- garyservin
- Date:
- 2016-12-31
- Revision:
- 0:9e9b7db60fd5
File content as of revision 0:9e9b7db60fd5:
/* * Software License Agreement (BSD License) * * Copyright (c) 2011, Willow Garage, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of Willow Garage, Inc. nor the names of its * contributors may be used to endorse or promote prducts derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _ROS_SERVICE_CLIENT_H_ #define _ROS_SERVICE_CLIENT_H_ #include "rosserial_msgs/TopicInfo.h" #include "ros/publisher.h" #include "ros/subscriber.h" namespace ros { template<typename MReq , typename MRes> class ServiceClient : public Subscriber_ { public: ServiceClient(const char* topic_name) : pub(topic_name, &req, rosserial_msgs::TopicInfo::ID_SERVICE_CLIENT + rosserial_msgs::TopicInfo::ID_PUBLISHER) { this->topic_ = topic_name; this->waiting = true; } virtual void call(const MReq & request, MRes & response) { if(!pub.nh_->connected()) return; ret = &response; waiting = true; pub.publish(&request); while(waiting && pub.nh_->connected()) if(pub.nh_->spinOnce() < 0) break; } // these refer to the subscriber virtual void callback(unsigned char *data){ ret->deserialize(data); waiting = false; } virtual const char * getMsgType(){ return this->resp.getType(); } virtual const char * getMsgMD5(){ return this->resp.getMD5(); } virtual int getEndpointType(){ return rosserial_msgs::TopicInfo::ID_SERVICE_CLIENT + rosserial_msgs::TopicInfo::ID_SUBSCRIBER; } MReq req; MRes resp; MRes * ret; bool waiting; Publisher pub; }; } #endif